| Patents for G01M 11 - Testing of optical apparatus; Testing structures by optical methods not otherwise provided for (14,356) |
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| 11/13/1990 | US4969737 Expanded foucault knife-edge test for quantitatively testing an optical imaging device |
| 11/08/1990 | DE3914666A1 Measuring optical loss of laser optical element(s) - introduced into light path from source with changes in Fabry-Perot resonator evaluated |
| 11/06/1990 | US4968880 Method and apparatus for performing optical time domain reflectometry |
| 11/06/1990 | US4968112 Apparatus for providing depolarized light |
| 10/31/1990 | EP0395253A2 Method and apparatus for monitoring characteristics of electrically conductive coatings on optical fibers |
| 10/30/1990 | CA1275588C Apparatus and process for object analysis by pertrubation of interference fringes |
| 10/25/1990 | DE3912812A1 Error angle measurement - adjusting casing rotation and central axis to position light spot on detector surface |
| 10/24/1990 | EP0393878A2 Helical bend proof testing of optical fibers |
| 10/24/1990 | CN1046390A Method for determining light loss at tops and top connections of fibre light guide |
| 10/24/1990 | CN1046389A Instrument for locating optical centre of lens |
| 10/24/1990 | CA2005844A1 Method and apparatus for monitoring characteristics of electrically-conductive coatings on optical fibers |
| 10/18/1990 | DE4010789A1 High energy laser power conductor failure optical detector |
| 10/16/1990 | US4963020 Detection of splices in an optical fiber |
| 10/13/1990 | CA2010154A1 Fiber optic safety system |
| 10/11/1990 | DE3911429A1 Device for aligning two fibre ends of optical waveguides |
| 10/10/1990 | EP0391045A2 High-range and resolution determinate mount and positioner |
| 10/06/1990 | CA2013887A1 High-range and resolution determinate mount and positioner |
| 10/04/1990 | DE3910503A1 Optical calibration standard |
| 10/02/1990 | US4960989 Optical time domain reflectometer having a receiver with selectively controlled gain |
| 09/25/1990 | US4958926 Closed loop control system for laser |
| 09/25/1990 | US4958896 Optical multi-gate element with an acousto-optical modulator |
| 09/20/1990 | WO1990010921A1 A method for detecting external influence on an optical cable |
| 09/18/1990 | US4957576 Method for protecting light conductive fiber ends projecting from a fiber reinforced part |
| 09/18/1990 | US4957365 Optical meter with dual functions avalanche photodiode |
| 09/18/1990 | US4957364 Helical bend proof testing of optical fibers |
| 09/12/1990 | EP0386210A1 Method of and apparatus for testing optical sensor based control apparatus |
| 09/12/1990 | CN2062062U Optical-electric multi-function microscope quality testing instrument |
| 09/11/1990 | CA1273816A1 Method of the measurement of light from an optical cable and arrangement therefor |
| 09/07/1990 | WO1990006498A3 Loss detection |
| 09/06/1990 | DE4004807A1 Arrangement for locating focus point of parabolic reflector - samples reflector surface for dimensional accuracy |
| 09/05/1990 | EP0385649A1 Fibre optic transmission system |
| 09/05/1990 | CN1045180A Light-reflection method for transmission-loss measurements in spliced optical fiber lightguides |
| 09/05/1990 | CN1045179A Light-reflection method for transmission-loss measurements in optical fiber lightguides |
| 09/04/1990 | US4953982 Method and apparatus for endpoint detection in a semiconductor wafer etching system |
| 09/01/1990 | CA2010875A1 Fibre optic transmission system |
| 08/29/1990 | EP0384828A1 Arrangement for the control of the modal alignment of optical fibers |
| 08/29/1990 | EP0384649A2 Optical fibre mounting arrangements and methods |
| 08/29/1990 | CN1044987A Light-reflection method of determining transmission losses in optical fiber lightguides |
| 08/29/1990 | CN1044985A Symmetric mirror image converting method for testing the variation of sight axis of telescope with distance |
| 08/28/1990 | US4952057 Optical fiber backscatter signature generator (OFBSG) |
| 08/28/1990 | US4952056 Method of determining the autocollimation angle of a grating coupler |
| 08/22/1990 | EP0383158A2 Lightwave component analyzer |
| 08/21/1990 | CA2010498A1 Device for the control and adjustment of the modal alignment of optical fibers |
| 08/21/1990 | CA2010447A1 Optical fibre mounting arrangements and methods |
| 08/14/1990 | US4948249 Headlight aiming and light pattern testing apparatus and method |
| 08/08/1990 | EP0380981A2 Process for determining the optical loss at the ends and connection ends of optical fibres |
| 08/08/1990 | EP0380801A2 Process for determining the optical loss of optical fibres in reflected light |
| 08/08/1990 | EP0380800A2 Process for determining the optical loss of coupled optical fibres in reflected light |
| 08/08/1990 | EP0380779A2 Method for determining the optical losses of optical fibres by reflected light |
| 08/08/1990 | EP0380764A1 Measuring device with a lightwave guide-bending sensor for the supervision of bridge components or the like |
| 08/08/1990 | CN1009132B Instrument for measuring time characteristic of optical signal equipment |
| 08/07/1990 | US4947459 Fiber optic link noise measurement and optimization system |
| 08/07/1990 | US4946122 Post clamp |
| 08/07/1990 | US4945776 Method of testing spliced portion of optical fibers |
| 08/02/1990 | DE3927293A1 Measuring back scatter damping of optical components - using back scatter measurement device which produces reference signal which is displayed on monitor |
| 08/01/1990 | EP0379650A1 Fibre optical sensor for small tensile or compression forces |
| 08/01/1990 | EP0379609A1 Method and apparatus for performing optical time domain reflectometry |
| 08/01/1990 | CA2008909A1 Method of determining optical losses at the ends and end joints of fiber light guides |
| 08/01/1990 | CA2008800A1 Light-reflection method for transmission-loss measurements in spliced optical fiber lightguides |
| 08/01/1990 | CA2008799A1 Light-reflection method for transmission-loss measurements in optical fiber lightguides |
| 08/01/1990 | CA2008797A1 Light-reflection method for transmission-loss measurements in optical fiber lightguides |
| 07/31/1990 | US4944571 Optical fibers |
| 07/24/1990 | US4943714 Method of continuous measurement of damping in an elongated light wave conductor-sensor having only one accessible end |
| 07/18/1990 | EP0378267A1 Device for inspecting an interference filter for a projection television display tube |
| 07/12/1990 | CA2007354A1 Device for inspecting an interference filter for a projection television display tube |
| 07/10/1990 | US4940892 Optical discontinuity monitor system |
| 07/10/1990 | US4940891 Automated system for measuring the strength of optical fibers |
| 07/04/1990 | EP0376194A2 Scanning optical device |
| 06/28/1990 | WO1990007105A1 Apparatus and method for detecting defects in an optical fiber |
| 06/27/1990 | EP0374470A2 Expansible reel for tests on filamentary material, in particular optical fibres |
| 06/26/1990 | US4936675 Calibrated bender for fiber optic cable position determination |
| 06/26/1990 | CA1270679A1 Decoding apparatus |
| 06/21/1990 | DE3842695A1 Measuring device for determining adhesiveness |
| 06/21/1990 | DE3842144A1 Method and device for testing optical systems |
| 06/20/1990 | EP0374043A1 Process for analysing optical components, optical fibres or networks of optical guides by time-domain reflectometry, and time-domain reflectometer |
| 06/19/1990 | US4935620 Method and apparatus for flight payout testing of optical fibers |
| 06/19/1990 | US4934819 Apparatus for measuring transverse moment of an electromagnetic field associated with an optical beam |
| 06/14/1990 | WO1990006640A1 Fiber optic link noise measurement and optimization system |
| 06/14/1990 | WO1990006498A2 Loss detection |
| 06/13/1990 | EP0372689A2 Optical fibre monitoring |
| 06/13/1990 | CN1008400B Optical detector storage effects reduction |
| 06/12/1990 | US4933888 Process for the digitization and linearization of a transducer with a quasi-sinusoidal periodic characteristic and corresponding apparatus |
| 06/06/1990 | EP0371816A2 Sensor using optical fibres |
| 06/06/1990 | CN1042776A Method of measuring power of lens |
| 06/06/1990 | CN1008304B Testing optical element behavior method by shadow-moire measuring |
| 06/05/1990 | US4930889 Method of and inspecting apertured mask sheets |
| 06/05/1990 | US4930852 Optical fiber mounting and structural monitoring |
| 05/31/1990 | WO1990005904A1 Apparatus and method for measuring refractive index |
| 05/30/1990 | EP0370229A2 Interferometric process for testing optical elements producing aspherical wave fronts |
| 05/30/1990 | CN1042606A Measuring method and equipment of polarization-dulling ratio optical fibre and optical system |
| 05/30/1990 | CN1008213B Optical fiber characteristic measuring method and apparatus |
| 05/29/1990 | CA1269755A1 Method and device for in vivo wetting determinations |
| 05/29/1990 | CA1269739A1 Inspection apparatus including photodetection and scanning apparatus |
| 05/22/1990 | US4928232 Signal averaging for optical time domain relectometers |
| 05/22/1990 | US4927232 Structural monitoring system using fiber optics |
| 05/16/1990 | EP0368001A2 Method for determining the transmission characteristics of an optical fibre |
| 05/16/1990 | CN1008008B Light barrier |
| 05/09/1990 | EP0367331A2 Method and arrangement for the determination of the position of the optical axis of an optical fibre |
| 05/08/1990 | US4924087 Optic fiber buffer defect detection system |
| 05/02/1990 | EP0366357A2 Method of measuring the power of a lens |